Save Skeleton Track

Saves a skeleton track as a track folder (keypoints.json, feet.json, contact.json, cycle.json, fit.json as present) in ComfyUI/output/<folder>/<name>_vN/ (a new folder every time). Load it again with Load Skeleton Track by the folder this node prints (e.g. pss_tracks/kick_v1): extract a move once, then fit it to any number of characters.